Surface-treating tool



May 1 2, 1925.

L. S. LARTIGUE SURFACE TREATING TOOL Filed' Dec. 1, 1923 a? Q Q 2 Sheets-Sheet 1 L.S.LARWGUE SURFACE TREATING TOOL May 12, 1925.

Filed Dec. 1, 1923 2 Sheets-Shaet 2 Patented May 12, 1925.

UNITED STATES PATENT OFFICE- LOUIS s'rnwnn'r LARTIGUE, or CHARLESTON, wnsrvrnerure.

sUnrAcn 'rnnATINe TOOL.

Application filed December 1, 1923. Serial No. 678,035.

tain new and useful Improvements in a Surface-Treating Tool, of which the following is a specification.

This invention relates to improvements in tools for treating the surfaces of objects for cleaning, scoring, finishing, or decorating the same. 7

The primary object of this invention is the provision of a hand operated tool primarily adapted for use in connection with cleaning of bricks so that they may be reclaimed in an economical and expedient manner. 7 i

A further object of this invention is the provision of a relatively simple and efficiently operated tool for the cleaning of bricks, stone, or other objects such as the sides of ships and buildings, embodying a reciprocating blade element which may be easily controlled over the object to be cleaned or otherwise acted upon to perform the desired operation.

A further object of this invention is the provision of a simple, compact, and effective hand controlled tool for the purposes above set forth embodying a reciprocating work performing construction, and a novel arrangement to effect the reciprocation thereof. 7

Other objects and advantages of this invention will be apparent during the course 0 f the following description.

In the accompanying drawings, forming a part of this specification, and wherein similar reference characters designate corresponding parts throughout the several views Figure 1 is a plan view of the improved tool, showing assembled deta1ls thereof.

Figure 2 is a side elevation of the tool 4 illustrated in Figure 1.

Figure 3 is a longitudinal cross sectional View taken through the improved tool.

Figure 4 is a tool.

Figure 5 is a cross sectional view taken substantially on the line 55 of Figure 3.

Figure (3 is a cross sectional view taken substantially on the line 66of Figure 1.

Figure 7 is a cross sectional view taken substantially on the line 7-7 of Figure 2. Figures 8 and 9 are cross sectional views having rear end elevation of the taken on their respective lines in Figure 3 of the drawings.

In the drawings, wliereinfor the purpose of illustration is shown but the preferred embodiment of this invention, the letter'A may generally designate the'impr'oved surface treating tool, which may include a" casing reciprocating means C; and means D for performing the reciprocation of the means C.

Referring to the construction of the casing B, the body portion 10'thereofis preferably formed of aluminum, and provides the cylindrical shaped hand grip portion 11 a passageway 12 longitudinally therethrough within which the drive shaft 14: of the means C is reciprocably mounted.

- As its lower end the hand grip-portion 11 of the body 10 is provided with an enlarged compartment or recess 15, and as a closure for this compartment. a brass cap 17 is provided for detachable screw threaded engagement with the reduced externally screw threaded end '18 of the casing portion 11;

the cap 17 preferably having an opening 19 through which the shaft let slidably ex tends. in a slidable engagement therewith. The head portion 20 of the casing B is, of course, apart ofthe body 10 and integral with the handle portion 11, and provides.

a chamber 23 therein into which the passageway 12 communlcates. i

The reciprocating means Q'preferablyineludes theshaft 14 above mentioned, which is slidably positioned in the handle portion 11 of the casing B. Intermediate its ends the shaft 14 preferably has an annular flange or collar- 25 fixedly positioned thereon, either byshrinking, or by pin connection therewith. A spring 28, under compression is adapted to be positioned in the casing compartment 15,

engaging the annular flange or collar 25- at one end, and the fore part of the detachable cap 17 at the other end, to normally force the shaft 14 into its most inward posit-ion within the casing B. At the forward or outer end of the shaft 1 1a transverse passageway or opening is provided, which is adapted to receive a detachable pin 31 for the connection of a blade construction 33 to said shaft. The blade 33 may assume various shapes, although for brick cleaning and the like, it is preferred that the blade construction 38 be flat, and at its forward edge having the teeth thereon, which areof tapered orpointed: formation and beveled to a pointed or chiseled edge, At the rear of the blade 33, an attachingsleeve 38 may be an, integral part thereof, providing 2L socket 39 into which the forward end of the shaft 14 may extend, so that the passageway 30 of the'forward end of said'rshaft may align with diametrically opposed openings 40 provided in the attaching sleeve 38,130 receive the connecting pin 31; the connecting, pin 31 at one side of the sleeve engaging said sleeve at its head portion 41, and its other side: having a cotter pin. i2: ex ending therethrough to prevent its det chment.

The inner end ofthe shaft 14: is preferably rounded, as; at 45,, and which rounded end extends; into the compartment, 23 inJthe head of the casing, for cooperation with the operating means 1),. and as Wlll, be subsequently described. The shaft 1d has a re ciprocating movement within the-casing B, and to prevent. its rotation a, detachable or adjiustable screw 4:? is threaded radially in the casing'liin the handle portion 11 thereof adjacent the head 20-, so that the innerend thereof may extend into a groove which is longitudinally provided in the driven shaft 1d and which groove 50 extends to the rounded end portion 45, so

that the shaft 14' may he slipped from itscasing without necessity of rearranging the adjustment of the screw 457;

Referring to. the means. D for operating the'means C, the same preferably comprises.

a shaft55, whichintermediate its ends has a cam 56 integrally connected therewitl' i.v

The shaft. is. rotatable in the head 20:,

with its axis. at right angles. to the axis. of-

the shaft 1%, and the cam 56. is. rotatably located in the chamber or compartment 23.-

of the head 20. To eflectthe placement of the cam within the compartment 23, adstachable bearing sleeve 57 is; provided, which includes the annularattachi ng' flange 58 having openings; therein for receiving screws 59 by means of which. the cap 57 may be at tached to the head 20-. Within the sleeve 57 a bushing 60' is supported, which provides a. passagewayfil' within which the top end.62

of the shaft 55 is. journalled. The opposite end seer- ,the shaft 55 is jiournalled in the head passageway 64, and provides a screw threaded portion 66 which extends outwards 1y of the head, 20', and to which any. suit.-

ablecoupling may be connected for theconnection of a flexible drive shaft totheshaft 55.. 20 may be screw threaded for receiving a coupling-nut 68, by means of which the flexible housing 69 may be connected: thereto,

and within which housing 69 the flexible drive shaft (notshown) is disposed.

Referring to the operation of; the improved tool A, the flexible drive shaft (not shown) is driven by any suitable motor, and

of course, rotates the shaft. 5.5, within the The lower part 67 ofthe casinghead casing- B. The cam '56, coming intoengagementat itsthrowportion with the rounded end 45, of the driven shaft 14 will'push the driven shaft 14 outwardly of the casing head notwithstanding the normal tendency of the spring 28., Rapid rotation of the drive shaft 55 will causethe driven shaft li'to reciprocate within the casing B, and the operator may move the blade 33 into engagement with any object to be eleanedor'treated to perform the desired operation.

From; the foregoing:description of this invention it is apparent that a surface treat ingetool has been provided, which is 1Z6L&7'

tively compact in GlHJtlzCiEBl-f, and which an operator can handle with; one'hand, while holding the object to be trea ed with the other. The-tool- :is primarily adapted for sm all'work, such the cleaning of bricks nd resu 1f.arcingw of ot er obi-(acts, althouslits use with respect to such articles is not to.- be limited,

Various changes in theshape, s e, and ar 'rangement of partsmay be made to the form of the invention herein shown and described, without departing from the spirit of the same, or the scope of the-claims.

I claim A surface treating tool comprisinga.

casing providing a hand engaging portion thereon wi h a passageway there liro gh and a head portion thereon providing a conipalft-i mentth rein and passageway right angles to the first mentioned passageway, shaft-reciprocably mounted in the passageway of the hand engaging portion ofasaid casing, a blade carried by said shaft at the outer end thereof, said shaft. having; the end thereof opposite the blade carrying end side of said drive shaft and by means of which said cam-is. fixed within the compartment in the head of said casing for rotation therein whereby upon rotation of the drive shaft the cam .may engage the rounded end I of said blade carrying shaft for reciprocai;

ingthe same I 2. A surface treating tool comprising a casing providing aband engaging" portion having a passageway therethrough and a head; portion having a compartment therein openingthrough one end of the head, and

a passageway disposed axially of the compartment and at right angles tothe first mentioned passageway, a bearing sleeve detachably carried by said head at the open end of said compartment, a rotatable drive shaft extending axially of the compartment and through the bearing sleeve and second mentioned passageway, a cam carried by said drive shaft and positioned in said compartment, a blade carrying shaft extending into the first mentioned passageway and slidable longitudinally therein'with its inner end extending into said compartment, abutment means carried by said blade carrying shaft within the casing, a cap carried by said casing and disposed about the blade carrying shaft, and a spring in said casing between the abutment and cap and serving to yieldably hold the blade carrying shaft against outward movement and its inner end in engagement with said cam.

3. A surface treating tool comprising a casing having a compartment provided therein and a passageway leading from the compartment longitudinally through the casing and having an enlarged forward end portion forming a spring receiving pocket, a perforated cap removably carried by the forward end of said casing, a cam rotatable pocket about the blade carrying shaft with 7 one end engaging the cap and its other end engaging the collar and serving to'yieldably hold, the shaft against outward movement and its inner end in engagement with the cam.

4. A surface treating tool comprising a casing having a compartment provided therein and a passageway leading from the compartment longitudinally through the casing, a cap carried by the forward end of said casing and having an opening disposed axially of the passageway, a cam in said compartment and rotatable therein, a blade carrying shaft extending through the cap and passageway into the compartment and having an abutment,and a spring between the cap and abutment and yieldably holding the blade carrying shaft against outward movement and its inner end in contact with said cam.

LOUIS STEWART LARTIGUE. 

